CN215384939U - Assembly type children knee valgus orthosis - Google Patents

Abstract

The utility model belongs to the technical field of corrective instruments and discloses a modular children knee valgus orthosis, wherein a thigh module is provided with a thigh supporting strip and a thigh outer side supporting plate fixed at the upper end of the thigh supporting strip through a bolt; the lower end of the thigh supporting strip is connected with a knee hinge of the knee joint component through a bolt, the lower end of the knee hinge is connected with a shank supporting strip of the shank component through a fixing block, and the shank component is provided with a shank rear connecting plate, the shank supporting strip and an ankle outer side supporting plate; the inner side of the fixed block is connected with a knee inner side supporting plate through a supporting strip. The carbon fiber component and the aluminum alloy component are connected, so that the carbon fiber component is good in rigidity, is not easy to lose efficacy and deform, is lighter and lighter than a traditional straightener, and is good in comfort; the hole sites are arranged, gypsum mould taking is not needed in the traditional mode, only the important size needed by the leg correction of the patient needs to be measured, the model is high in accuracy and short in manufacturing time, transportation after gypsum mould taking is reduced, the working efficiency is improved, and the product cost is reduced.

Description

Assembly type children knee valgus orthosis

Technical Field

The utility model belongs to the technical field of correction instruments, and particularly relates to a component type children knee valgus orthosis.

Background

The knee valgus of children is a common lower limb deformity in clinic and is commonly called as an X-shaped leg in life. It has been reported that more than 40 diseases can cause it, but more than 70% of knee valgus is due to rickets. Current clinical definition of knee valgus in children: the deformity of the lower limbs is mainly characterized by the fact that when the two lower limbs are naturally straightened or stand, the two knees can touch each other, and the inner ankles of the two feet are separated but can not close. It can be caused by congenital heredity, acquired malnutrition, improper sitting and walking posture of infants, and can cause a bone joint abnormality phenomenon formed by femur adduction, internal rotation, femur abduction and external rotation. During examination, the patient can stand to straighten the lower limbs, the knees are closed, the ankles can be closed normally, if the ankles cannot be closed, the distance between the two internal ankles is measured, and the ankle joint eversion degree is approximate. Generally, the distance is mild within 3cm, moderate between 3-10 cm, and severe above 10 cm. Most patients have no discomfort in the early stage, but patients with severe knee valgus often have inconvenient walking and seriously affect the beauty, and early degenerative diseases of the knee joint can appear in the later stage. The purpose of treatment of knee valgus is to correct deformity, improve gait and appearance, and prevent early appearance of joint degeneration. For severe knee varus, especially obese children under the age of 8 and patients with pathologic knee valgus, those with ankle spacing of more than 5cm may consider wearing braces for deformity correction. The brace is worn to protect the knee joint, prevent the ligament from being unstable and achieve the effect of correction.

It is not uncommon for children to have knee valgus, and children with knee valgus who miss the correction opportunity and have an obvious degree may face surgical treatment by taking a brace as a main mode for conservative treatment children. On the market, correction braces are many, and have a lot of fishes and dragons to mix the pearl, some unscrambler structures are complicated, and it is comparatively troublesome to dress, and influences normal walking, and the correction effect is also not obvious. Through experience gained from a large number of clinical applications, the main problems and defects of the prior art are as follows: 1. the existing genu valgus corrector has a complex structure, is troublesome to wear, influences normal walking and has a very small correction effect. 2. The existing correction brace is formed by hot molding, stainless steel hinges are adopted at the knee joints for connection, the weight is large, the coverage area is large, the brace can easily slide downwards, the fatigue degree of steel is limited, the correction force can be reduced after a long time, and the aim of correction cannot be achieved if a patient does not notice, so that the development of the patient is influenced. 3. The traditional brace is shaped once, the size is improper after use, the brace needs to be customized again, and the treatment cost is high.

In view of the above shortcomings of the conventional brace, we have devised a modular children's genu valgus orthosis for solving the above problems. The main significance lies in that: the hinge adopts aluminum alloy in the product, the plane thrust bearing is arranged in the middle, the axial gap is very small, so the direction of the force applied to the legs can not be changed, the upper and lower leg supporting strips and the force application part are made of carbon fiber, the carbon fiber has fatigue resistance, the applied force can not be reduced along with the time, the weight is small, the strength is high, and meanwhile, the insole with polyurethane material at the bottom of the foot does not influence the walking and is not easy to slide down. When the infant grows and develops, when correcting the vocal bias of power point, the accessible local adjustment subassembly can satisfy new correction needs, improves material utilization, reduces use cost and treatment burden.

SUMMERY OF THE UTILITY MODEL

In view of the problems of the prior art, the present invention provides a modular pediatric knee valgus orthosis.

This orthopedic ware mainly includes:

1. the thigh module is used for acting on the outer side of a thigh and supporting the thigh part of the human body;

2. the knee joint module is used for connecting the thigh module and the shank module, acts on the inner side of the knee joint and applies pressure to the knee joint;

3. the shank module is used for supporting shank parts of a human body;

4. a foot pad module for preventing the entire orthosis apparatus from falling off.

Further, the thigh module comprises: thigh outer side supporting plates and thigh branch bars;

thigh outside fagging and thigh branch strip are carbon fiber material, thigh outside fagging is fixed in thigh branch strip upper end through the bolt, thigh branch strip lower extreme passes through the bolt and is connected with the knee joint module.

Furthermore, a plurality of adjusting holes which are arranged at equal intervals are respectively arranged at the upper end and the lower end of the thigh supporting strip.

Further, the knee joint module includes: the knee hinge, the knee inner side supporting plate and the fixing block;

the upper end of the knee hinge is connected with the thigh module through a bolt, the lower end of the knee hinge is connected with the shank module through a fixing block, and the inner side supporting plate of the knee is connected with the inner side of the fixing plate through a supporting strip.

Furthermore, the knee hinge is an aluminum alloy component, a plane bearing is attached inside the knee hinge, the axial clearance is small, a copper sleeve is attached inside the knee hinge, and the radial clearance is small;

the knee inner side supporting plate is made of carbon fiber and acts on the inner side of the knee joint to apply pressure to the knee joint;

the fixing block is made of aluminum alloy and fixed on a connecting plate at the rear part of the shank and used for adjusting the shank module.

Further, the shank module comprises a shank rear connecting plate, shank supporting strips and an ankle outer side supporting plate;

the shank rear connecting plate is made of carbon fiber and is connected with the whole orthopedic device; the shank supporting strip is made of carbon fiber, is a stress piece and is connected with an ankle outer side supporting plate; the ankle outside fagging is carbon fiber material, acts on the ankle outside, exerts pressure to shank fibula upper end department.

Furthermore, a plurality of adjusting holes which are arranged at equal intervals are arranged at the lower end of the shank supporting strip.

By combining all the technical schemes, the utility model has the advantages and positive effects that: the hinge adopts aluminum alloy in the product, the plane thrust bearing is arranged in the middle, the axial gap is very small, so the direction of the force applied to the legs can not be changed, the upper and lower leg supporting strips and the force application part are made of carbon fiber, the carbon fiber has fatigue resistance, the applied force can not be reduced along with the time, the weight is small, the strength is high, and meanwhile, the insole with polyurethane material at the bottom of the foot does not influence the walking and is not easy to slide down. After the measurement is finished, the assembly of the appliance is guided only by data, and finally the appliance is connected into a complete brace.

The carbon fiber component and the aluminum alloy component are connected, so that the rigidity is good and the carbon fiber component and the aluminum alloy component are not easy to deform. The orthosis is provided with hole sites, so that the patient does not need to take a plaster female type, only important sizes of the legs of the patient need to be measured, and finally the leg is connected into a complete brace. The whole device is simple in structure, convenient to wear, free of influence on normal walking and capable of gradually correcting legs.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 and 2 are schematic structural diagrams of a modular children knee valgus orthosis provided by an embodiment of the utility model.

In the figure: 1. a thigh outer supporting plate; 2. thigh branches; 3. a knee hinge; 4. a knee inner stay plate; 5. branch; 6. a fixed block; 7. a shank branch; 8. an ankle outer side supporting plate; 9. a foot pad; 10. leg straps are used.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In view of the problems of the prior art, the present invention provides a modular pediatric knee valgus orthosis, which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the modular children knee valgus orthosis provided by the embodiment of the present invention includes a thigh module (which connects a thigh outer side supporting plate 1 and a thigh supporting strip 2 by bolts), a knee joint module (which fixes a knee hinge 3 and a knee inner side supporting plate 4 on both sides of a connecting plate at the rear part of a lower leg by bolts, and fixes a fixing block 6 on the same side of the knee hinge 3 by bolts), a lower leg module (which fixes an ankle outer side supporting plate 8 on a lower leg supporting strip 7 by bolts), and a foot pad, wherein the thigh module is fixed on the knee joint module by bolts, the knee joint module is connected with the lower leg module by clamping the lower leg supporting strip by the fixing block, and then the foot pad is fixed by bolts, and finally, EVA pads are adhered to the thigh outer side supporting plate, the knee inner side supporting plate, and the ankle outer side supporting plate, so as to form a complete device.

Thigh outside fagging 1, knee inboard fagging 4, ankle outside fagging 8 and thigh branch 2, branch 5, shank branch 7 is made by carbon fiber material, it is the high strength of carbon content more than 95%, fibrous novel fiber material of high modulus, many good properties have, the axial strength and the modulus of carbon fiber are high, low density, specific performance is high, no creep, resistant ultra-high temperature under the non-oxidation environment, fatigue resistance is good, specific heat and electric conductivity are between nonmetal and metal, the coefficient of thermal expansion is little and have anisotropy, corrosion resistance is good, X ray permeability is good. Good electric and heat conducting performance, good electromagnetic shielding performance and the like. The carbon fiber material has small rebound resilience, and just like the thigh supporting strip 2, the deflection angle is designed, so that the acting force of the supporting plate is greatly improved.

The knee hinge 3 is an aluminum alloy component, a plane bearing is attached to the knee hinge, and the axial clearance is small; the copper sleeve is attached inside, the radial clearance is small, the rotation is smooth, the patient can wear and walk, and the patient's state of illness can be corrected at any time.

The EVA pad has the characteristics of insolubility in water and any solvent, no toxicity, no odor, stable chemical property and the like, and can be selected to have a proper thickness according to the state of illness of a patient.

Thigh assembly in embodiments of the utility model:

thigh outer side supporting plates: the carbon fiber material acts on the outer side of the thigh to apply pressure to the external epicondyle of the femur

Thigh branches: the carbon fiber material, the stress piece and the design deflection angle improve the acting force of the supporting plate

Knee joint components:

a knee hinge: the aluminum alloy component is internally provided with a plane bearing, and the axial clearance is small; the inner part is provided with a copper sleeve, and the radial clearance is small

② knee inner side supporting plate: the carbon fiber material acts on the inner side of the knee joint to apply pressure to the knee joint

A fixed block: the aluminum alloy material is fixed at shank rear portion connecting plate for adjust shank subassembly:

connecting plates at the rear parts of crus: carbon fiber material, connecting whole orthopedic device

A shank branch: carbon fiber material, stress member, connecting ankle outer side supporting plate

③ outside ankle supporting plate: carbon fiber material acts on the ankle outside, applies pressure callus on the sole to shank fibula upper end department: the polyurethane material prevents the whole orthosis device from falling off.

The orthosis achieves the correction effect by three forces applied at the lateral epicondyle of the femur, the upper end of the calf fibula and the medial side of the knee joint using the principle of "three-point force". Most of the orthotics are made of carbon fiber materials, so that the overall strength and performance of the product are greatly improved; the joint is smoothly rotated, so that the shoe is convenient to wear and does not influence walking; the comfort and softness of the silica gel pad improves the comfort level of the product, so that the correction effect is optimal.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the utility model, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the utility model as defined by the appended claims.

Claims (1)

1. A modular child knee valgus orthosis comprising:

the thigh module acts on the outer side of a thigh and is used for supporting the thigh part of the human body;

the knee joint module is connected with the thigh module and the shank module, acts on the inner side of the knee joint and applies pressure to the knee joint;

the shank module is used for supporting shank parts of a human body;

a foot pad module for preventing the entire orthosis apparatus from falling off;

the thigh module includes: thigh outer side supporting plates and thigh branch bars;

the thigh outer side supporting plate and the thigh supporting strip are made of carbon fiber materials, the thigh outer side supporting plate is fixed at the upper end of the thigh supporting strip through a bolt, and the lower end of the thigh supporting strip is connected with the knee joint module through a bolt;

a plurality of adjusting holes which are arranged at equal intervals are respectively formed at the upper end and the lower end of the thigh supporting strip;

the knee joint module includes: the knee hinge, the knee inner side supporting plate and the fixing block;

the upper end of the knee hinge is connected with the thigh module through a bolt, the lower end of the knee hinge is connected with the shank module through a fixing block, and the knee inner side supporting plate is connected with the inner side of the fixing plate through a supporting strip;

the knee hinge is an aluminum alloy component, a plane bearing is attached inside the knee hinge, the axial gap is small, a copper sleeve is attached inside the knee hinge, and the radial gap is small;

the knee inner side supporting plate is made of carbon fiber;

the fixing block is made of aluminum alloy, is fixed on a connecting plate at the rear part of the shank and is used for adjusting the shank module;

the shank module comprises a shank rear connecting plate, shank supporting strips and an ankle outer side supporting plate;

the shank rear connecting plate is made of carbon fiber and is connected with the whole orthopedic device; the shank supporting strip is made of carbon fiber, is a stress piece and is connected with an ankle outer side supporting plate; the ankle outer side supporting plate is made of carbon fiber;

the lower end of the shank supporting strip is provided with a plurality of adjusting holes which are arranged at equal intervals.

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